--- Libc/Libc-1725.40.4/tests/strncat.c
+++ /dev/null
@@ -1,97 +0,0 @@
-#include <string.h>
-
-#include <darwintest.h>
-
-#define S1 "Squeamish"
-#define S2 "Ossifrage"
-
-T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
-
-/*
- * Common test procedure for strncat(): measure the inputs, verify that we
- * will not overflow our buffer, populate the destination buffer, call
- * strncat(), verify that the destination buffer contains exactly what we
- * expect.
- */
-static void
-t_strncat(char *s1, char *s2, size_t n)
-{
-	char buf[1024];
-	char *result;
-	size_t l1, l2, l;
-
-	memset(buf, '@', sizeof(buf));
-	buf[sizeof(buf) - 1] = '\0';
-	l1 = strlen(s1);
-	l2 = strlen(s2);
-	l = l2 < n ? l2 : n;
-	assert(l1 + l < sizeof(buf));
-	memcpy(buf, s1, l1);
-	buf[l1] = '\0';
-	T_EXPECT_NOTNULL(result = strncat(buf, s2, n),
-	    "Return value should not be NULL");
-	T_LOG("strncat(\"%s\", \"%s\", %zu) = \"%s\"", s1, s2, n, buf);
-	/* cast to void to suppress warning in darwintest macro */
-	T_EXPECT_EQ_PTR((void *)result, (void *)buf,
-	    "Return value should be equal to destination");
-	T_EXPECT_EQ(0, memcmp(buf, s1, l1),
-	    "Output should contain first input");
-	T_EXPECT_EQ(0, memcmp(buf + l1, s2, l),
-	    "Output should contain second input");
-	T_EXPECT_EQ('\0', buf[l1 + l],
-	    "Output should be terminated");
-}
-
-T_DECL(strncat_empty_empty_zero,
-    "Append zero characters from an empty string to an empty string")
-{
-	t_strncat("", "", 0);
-}
-
-T_DECL(strncat_empty_empty_unlimited,
-    "Append an empty string to an empty string")
-{
-	t_strncat("", "", SIZE_MAX);
-}
-
-T_DECL(strncat_empty_nonempty_zero,
-    "Append zero characters from a non-empty string to an empty string")
-{
-	t_strncat("", S2, 0);
-}
-
-T_DECL(strncat_empty_nonempty_limited,
-    "Append part of a non-empty string to an empty string")
-{
-	t_strncat("", S2, sizeof(S2) / 2);
-}
-
-T_DECL(strncat_empty_nonempty_unlimited,
-    "Append a non-empty string to an empty string")
-{
-	t_strncat("", S2, SIZE_MAX);
-}
-
-T_DECL(strncat_nonempty_empty_unlimited,
-    "Append an empty string to a non-empty string")
-{
-	t_strncat(S1, "", SIZE_MAX);
-}
-
-T_DECL(strncat_nonempty_nonempty_zero,
-    "Append zero characters from a non-empty string to a non-empty string")
-{
-	t_strncat(S1, S2, sizeof(S2) / 2);
-}
-
-T_DECL(strncat_nonempty_nonempty_limited,
-    "Append part of a non-empty string to a non-empty string")
-{
-	t_strncat(S1, S2, sizeof(S2) / 2);
-}
-
-T_DECL(strncat_nonempty_nonempty_unlimited,
-    "Append a non-empty string to a non-empty string")
-{
-	t_strncat(S1, S2, SIZE_MAX);
-}